Apparatus for cleansing drinking vessels and the like



e. A. STANLEY 2,574,069

APPARATUS FOR CLEANSING DRINKING VESSELS AND THE] LIKE Nov. 6, 1951 3 Sheets-Sheet 1 Filed Dec. 27, 1948 lzzv 91272201 Md fizz:

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Nov. 6, 1951 2,574,069

APPARATUS FOR CLEANSING DRINKING VESSELS AND THE LIKE s. A. STANLEY s Sheets-Sheet 2 Filed Dec.

Nov. 6, 1951 G. A. STANLEY 2,574,069

7 ,APPARATUS FOR CLEANSING DRINKING VESSELS AND THE LIKE I Filed Dec. 27, 1948 s Sheets-Sheet s Patented Nov. 6, 1951 2,574,069 I CE APPARATUS FOR CLEANSING DRINKING VESSELS AND THE LIKE Gerald Arthur.Stanley, Oakleigh, Victoria, Australia; Evelyn Maud Stanley executrix of said Gerald'Arthur Stanley, deceased Application December 27, 1-948ySerial No. 67,307 In Australia January 12, 1948 This invention relates to apparatus forrcleansing drinking glasses and the like and its object is to provide simple and improved apparatus suitable for use in hotel bars and the like and 'by means of which such vessels may be cleansed efiectively and expeditiously.

Apparatus in accordancewith the invention broadly comprises a table of op'enwork construction supported for rotation. about a substantially vertical axis and adapted to support a plurality of inverted drinking glasses, upwardly-directed spray means arranged below said table between loading andaunloading stations thereof and means operable manuallyto impart intermittent angular movements to said table.

Preferably the table is actuated by a reciprocable hydraulic motor and a salient feature thereof resides in the provision of a' single-acting hydraulic motor arranged to operate energy storing means such asa spring, saidenergy storing means being arranged to actuate said table.

Another important feature of the'invention resides in the provision of control means. adapted at each actuation thereof toscause the table and spray means to undergo one complete :cycle of operations.

The said tableispreferably arranged'within .a shallow dished tray provided with means vfor discharging waste liquid therefrom.

The invention also includes valve and other mechanism as hereafter described.

For a more particular descriptioncof a preferred embodiment of the invention reference will be'made :to the accompanying drawings in which:

Figure 1 isa view in plan of the one construction of cleansing apparatus according to the invention,

Figure 2 is a view in sectional elevation taken on the line 2-2 of Figure 1, V v

Figure 3 is a view in sectional elevation to a larger scale and is taken on the line 3-4 of Figure 1, V

Figure 4 is a view in sectional end elevation and is takenon the line 4 l of Figure 3,

Figure 5 is a view in sectional plan of a hydraulic actuating cylinder,

15 Claims. (01. 134 141.)

Figure 12 is a vie similar to Figure ll and shows anotherstage in the operationof the apparatus, p v

Figure 13 is a view insectional plan on the line l3-'-I3 of Figure 12,

Figures 14 and 15 are sectional views onthe .lines 14-44 and l5-l5 of Figures '11 and 13 respectively, v

Figure 16 is a view in sectional. elevation taken on the .line I6l6 of Figure 10, and

Figure 17 is a view in plan of theglass washing machine showing a modified arrangement ofthe spray means. r

In the several figuresof the drawings the same reference numerals are used to designate the same or corresponding parts and theapparatus shown in Figures 1 to 9 inclusive comprisesa relatively shallow circular tray l0 formed of sheet metal and which may be arranged horizontally below abar counter ll whereby aportion'of the periphery projects beyond the rear edge thereofas shown in Figure l.

V This tray is provided at the center with a casting [2 whichforms a vertical'bearing vfor a spindle l3lprovided at its upper end with anintegral disc l l to which is clamped" rigidly by a head member I 5 the centralportion of -a circular horizontal table I6 arranged within the top of the tray I0.

The table 16 comprises a peripheral wire ring iii *a little smaller in diameter than the :tray 10, a pluralityof radial arms' l6 and a plurality of intermediate concentric wire rings l-Gispaced as far apartas is consistent with their function of supporting inverted drinking glasses -I'l.

Alternatively the table [6 may be formed pf square wire mesh or may-be of any other suitable openwork construction,

The central casting l2-,is'-formed with a radial projection l2 providedwithan axial passage which communicates with a valve chamber L2 in an enlargement :of the free end of such projection, the outer'endof the valve chamber being fitted with a: detachable cov r plate :4 V The free .end of .thepm'iection :IZFiscalso provided with lateral flanges I2 .to whichiisasecured fill , plurality of. radial ratchet teeth 14' it'or-medz'on theunder surface ofithezd'isc -l4, :In the illustrated embodiment "six ;ratchet teeth Tl lfl arel provi'ded whereby as 'hereafterwdescribedjthe table I6 is turned through one sixth-of ;a=revolution at each actuation. :of. :the apparatus.

The outer end of the cylinder is connected by a pipe 22 to a port 23 in the. inner face of the aforesaid cover plate l8 of the valve chamber while a compression spring 24 arranged within the cylinder on the opposite side of the plunger constantly urges the latter towards the outer end of the cylinder.

A valve spindle 25 extends centrally through a bearing in the cover plate |8 of the valve box and is provided at its inner end with a valve member generally designated 26 and comprising two angularly spaced wings 26 and 26 respectively which, in order to obviate excessive frictional resistance to turning, are made as small in area as possible.

- The inner face of the cover plate H! of the V valve body is formed with a second port 21 to which is connected one end of a pipe 28, the outer end portion of which forms a closed loop fitted with a plurality of upwardly directed spray lets 29.

The wider wing 26' of the valve 26 is of suflicient size to cover the ports 23 and 21 simultaneously, while the wing 26 serves to close the port 21 only during the idle stroke of the plunger 20. as hereafter described.

The valve spindle 25 is coupled to a coaxially arranged operating spindle 36 which extends through the peripheral wall of the tray and is fitted with an operating arm 3| which is con- 'tinually urged towards its inoperative position shown in Figure 6 by a torsion spring 3| shown in Figure 1.

The valve spindle 25 is fitted with a disc cam 32, the periphery of whichis engaged by one end of a retaining pawl 33 pivoted intermediate its ends to a lug on the wall of the valve chamber, the opposite end of said pawl being bent upwards to engage the radial ratchet teeth M on the center disc M ofthe rotatable table.

The function of this pawl and the shape of the cam 32 are explained in the ensuing description of the operation of the apparatus.

The cleansing fluid which may for example be hot or cold water, is supplied under pressure to the valve chamber l2 through a pipe 34 which extends inwardly through the peripheral wall of the tray Iii and communicates with the central passage in the radial projection |2'. Thus the valve chamber is normally filled with water under pressure and the wings 2B and 26 of the valve member are maintained thereby in sealing contact with the inner face of the cover plate l8 of the valve body. I

A detachable splash guard 35 is arranged above the table H in alignment with the spray jets 29 below the latter, the outer wall of said guard being detachably connected to the rim of the tray It] as shown in Figure 2, while the inner wall rests on the center of the table as shown in the same figure.

In use the glasses H to be cleaned are inverted and placed on the table l6 somewhat in advance of the sprays 29 and splash guard 35.

At this time the operating arm 3| and the valve 26 are disposed in the positions shown in Figure 6 so that the valve ports 23 and 21 are both closed by the wider wing 26 of the valve.

At this stage the inner end of the retaining pawl 33 is disposed behind the following face of one of the ratchet teeth l4 as shown in Figure 6, while the outer end thereof is in register with a clearance recess 32 in the edge of the cam 32 as shown in the same figure.

Also at this stage the plunger and plunger rod 20 are disposed in their normal outermost positions and the pawl 2| on the inner end of the plunger rod is disposed behind the following face of one of the ratchet teeth M as indicated in Figure 5.

When a batch of glasses H has been placed in the described position on the table IS the operating arm 3| is moved manually in a clockwisedirection to the position in which it is shown in Figure 7, further movement in this direction being arrested by an associated stop on the rim of the tray Ill.

The valve 26 and the cam 32 participate in this movement whereby the valve Wing 26 is moved clear of the ports 23 and 21 while the valve wing 26 is moved into position to again close the port 21.

The said movement of the cam 32 causes the outer end of the pawl 33 to be elevated to pass a radial shoulder 32 and then to enter a second clearance recess 32 in the edge of the cam but this pawl movement is without effect at this time. Thus as the cylinder port 23 is now open, water under pressure passes through the pipe 22 to the outer end of the cylinder l9 and forces the plunger inwardly to its full extent against the action of the spring 24. This movement of the plunger rod carries the driving pawl 2| beyond the next succeeding ratchet tooth I4 as also indicated in Figure 5 but is an idle stroke, insofar as movement of the table 5 is concerned.

The operating arm 3| is held in the described operated position only for the short time required for the plunger to move inwards and compress the spring 24 and is then released whereupon it is moved in the reverse direction by its associated spring 3|. This return movement is arrested at an intermediate position when the shoulder 32 on the cam engages the outer end of the retaining pawl 33 as shown in Figure 8. This partial return movement causes the wing 26 of the valve member to uncover the port 21 and the wing 26 to cover the port 23 so that the fluid pressure within the cylinder is relieved.

The spring 24 then returns the plunger 20 to the outer end of the cylinder by forcing the water in the latter past the plunger so that it is discharged through an exhaust port IS in the inner end of the cylinder. Thus the return movement of the plunger is controlled by the rate at which the water can escape from the cylinder around the plunger.

During this return movement the table l6 with the glasses l1 thereon is advanced through one sixth of a turn and this movement suffices to carry the glasses into and through the splash guard 35.

As above described the port 21 is uncovered by the partial return movement of the valve 26 so that as the table undergoes the said advancin movement water under pressure is discharged upwardly through the spray jets 29 and the glasses are cleansed as they pass below the guard.

As the table completes its intermittent movement the inclined leading face of one the ratchet teeth I4 engages and depresses the inner end of the retaining pawl 33 so that the outer end of the latter is raised to clear the shoulder 32 on the cam. Thus the spring 3| is free to return the valve 26 to its original position shown in Figure 6 and cut off the supply of water to the spray jets 29.

The waste water discharged through the spray jets and from the cylinder I9 is collected in the tray l0 and is discharged to waste through a suitable outlet 40 therein.

they" return to the rea'r'of the'bar counter and-are V v t e Q m v It is important to" note that the' movemen of the table It are effected by means' o' 'f thlgo' nflpressed spring 24 so that the speed thereof is' independent of variations in the pressure of the water employed to compress same. 'Ihat" say the table is stationarywhile pressure wa'ter is being supplied to the cylinder t m ve the plnnger inwardly and compress the spring. k The modified andpreferred construction illustrated in Figures to 17 inclusive is ge" I ally similar to that described above andit isLja co X "gly necessary to refer only to the" differences in construction and arrangement. I

In this construction the plunger zll is' a tight fit the cylinder and the interface of cover plate l8' of the valve: casing I2 is provided between the cylinder port fiandthe spray poift 21 with a cylinder exhaust port 4E1providing aceess to an exhaust passage 4l whieh dis'cha'rges into the tray It; an adjustable spring loaded valve 4'2 being provided to regulate the rate of flow'of theliquid the'rethrough. I Y H H The valve 26 consists of a single radial meme ber and same is provided in its inner face with a transverse slot 43 which in one position o'f the valve connects the cylinder port 23' to the exhaust port 40 as shown in Figures 12 and l5 When this valve 26 is disposed in its" normal position, shown in Figure 11, the cylinder port 233 is uncovered so that the outer end. of the cylinder is normally full of water under pressure the plunger rod being thus fully projected and the sprin 24 compressed. Consequently, the apparatus is normally ready to operate immediately the control arm 3| is actuated. p

When the control arm is raisedjto its operated position, the valve 26 is moved to th'position shown in Fig. 12 so that the spray port 21 is; uncovered while the cylinder and exhaust porlts 2 3 and 40 respectively are both covered but are placed in communication with each other by means of the aforesaid slot 43 in the inner face of the valve.

Thus the compressed spring 24 forces the plunger towards the outer end of the cylinder and discharges the water therefrom through the exhaust. passage 4|, the rate of such movement heingadjustable by the valve 42 to determine the rate at which water can escape from the cylinder.

V The cam 32 isformed with a flat sin acegzt which is normally in register with the weighted end of the pivoted retaining pawl 33 whereby the inner end of the latter is normally received in one of a plurality of equally spacedrectan gular slots 44 in the periphery of the centrald sc l4 which supports the table I6, the lower portions of the following faces of such slots being bevelled as shown at 44'. p Thus when the pawl 33 is disposed in" t describednormal position, thetable is restrained thereby against angular movements in either di r v.

v When, however, the control arm 3] is" raised to its aforesaid operative position, the cam 32 1's moved angularly into the position showniiir gure l2so that the outer end of the pawlis raised while inner end is correspondinglydepressed t the position s o n infihi fig reanw ii l be noted that same still projects upwardl into kit 6 l t 'e i i ei M a M Membe edge thereof s disposed below the vertical por- 6f th following fa eor the slot ou ge a5; uiep'stvr willstill 'preventretrograde e tablf but will permit offorp (ed-intermediateends to thecylindex" and the outer end of which is urged towards the periphery of the cam by astrip spring 46; when thecai approaches its qper a search; the said outer end of the retainin asses new a retaining shoulder 3'21) on" the A T e 'irinererid of the" pivoted retainingarm 45 is formed with an inclined face 45' for engagement by an adjustable abutment screw 41 on the *6 end of the plunger rod 20' as the latter clo'sely apsrtaehes; the limit of its retracting movement under the influence of the spring 24 within the inner end of the cylinder. Thus" as the lunger rod reaches the Iirnit of its said mo' ment, the retaining lever 45 is displaced sufii any toreleas'e the earn 32' which then reto itsi nor'rnal position under the influence of the control arm 3i which is weighted at its free end. 4

i The saia-tmngr'r'da 2D is preferably of square shape cross section to prevent angular movethereof' and its free end is provided as in the icohstrution previously described with an upstanding post in which a depressible spring lbadeddriving pa l 2 I is slidably mounted.

driving pawl is successively engag' ablewit a plurality of radially disposedratchet slots 46' formed inthe lower face of the disc l4, each such slot being disposed in radial alignmentone of the peripheral slots 44' in the said. dish.

ha ofeach slot 46 is disposed vertically while the following face thereof in-- 'c lin e's rearwardly and downwardly to depress the drivihg pawl 2| when the latter is moved rear-- wardly by theplunger 2!} that is when the latter reed inwardly by the pressure fluid to perm' i s. dle? S rate- 7 Preferably provision made whereby damage to therhech n'isn' is avoided if the control arm fif sforced towards its: normal lowermost posi tion; while the cam 32 isretained in its operated position by th epivotedretaining lever 45. Thus as glam; in lfigure lfi the control arm is pivoted to the outer end of the operating spindle 3t and th'einnerend of said arrnis enlarged and formed an interrupted recess 41 one end of which isde'fined anintglal driving abutment 3|.

"II 1 is ahutmnt 3| is normally maintained in engagement with a corresponding abutment 48 on the driving spindle by a compression spring 49 which, however, permits the control arm to be pressed downwards independently of the spindle 30 while the cam 32 is held in its 0D- erated position by the pivoted retaining lever 45. It may also bementioned that the wall of the valve chamber I2 is extended laterally by a laterally opposed pair of integral wing portions of which one, designated I2 forms a split clamp for the cylinder I 9, while the other I2 is formed with a passage 34' by which water is supplied to the valve chamber from the supply pipe 34.

A perforated spray pipe 28 is arranged substantially radially below the table [6 and substantiallydiametrically opposite to the operatin spindle '30 and a second perforated spray pipe 28' is arranged adjacent and parallel thereto.

The outer ends of these spray pipes 28 and 28' project through the rim of the tray HI and are connected together through ashut-off valve 50.

In addition the outer end of the pipe 28 15 connected by a pipe 28a to the cold water inlet of a suitable type of pressure water heater shown diagrammatically at 5|, while similarly the spray pipe 28' is connected by a pipe 28b provided with a shut-off valve 52 to the hot water outlet of the heater. g

Accordingly, if cold water is supplied under pressure through the supply pipe 34, cold water is sprayed upwardly through the pipe 28, while either cold water or hot water is simultaneously sprayed upwardly through the pipe 28' according to whether the valve 50 or the valve 52 is open. I

It will be noted also that in this modification the splash guard 35 extends above and around approximately one half of the circumference of the table.

From the foregoing description it will be understood that the weight of the control arm 3| normally maintains it in its lowermost position so that the valve 25 is in the position shown in Figure 11 with the cylinder port 23 uncovered and the spray port 21 covered.

The cylinder I9 is thus normally full of water under pressure so that the plunger rod 20' is fully projected and the driving pawl 2| thereon is engaged in one of the radial ratchet slots 46 in the lower face of the disc l4.

At this time the table |6 is restrained against movements in either direction by the inner end of the retaining pawl 33 which is received within the corresponding slot 44 in the periphery of the disc I4.

In order to operate the machine, the control arm 3| is moved to its uppermost position and is then released but same is retained in such positionby the engagement of the pivoted retaining lever 45 with the shoulder 321) on the cam 32 which was moved in unison with the control arm to disengage the retaining pawl 33.

Also the operation of the control arm causes the valve 26 to be moved from the position shown in Figure 11 to that shown in Figure 12 so that the spray port 21 is uncovered while the cylinder port 23 is covered and connected to the exhaust port 40 by the by-pass slot 43 in the inner face of the valve.

Thus water under pressure passes to the spray pipes 28 and 28 while the plunger rod commences its outward operative stroke under the influence of the spring 24 within the cylinder and imparts a corresponding angular movement to the table l6 through the'driving pawl 2|.

As the plunger rod approaches the end of its outward stroke the abutment screw 41 thereon engages the inner end of the pivoted retaining lever 45 and displaces same in opposition to the associated spring whereby the cam 32 is released so that the weighted control arm 3| returns the cam and the valve to their normal positions.

Thus as the table is completing its angular movement the fiat portion 32a of the cam moves into register with the outer end of the retaining pawl 33 so that the inner end of the latter moves upwardly into the adjacent slot 44 in the periphery of the disc l4 and so locks the table against further movement.

As the valve returns to its normal position the cylinder port 23 is again uncovered thereby so the plunger is forced inwards to the opposite end of its stroke thus compressing the spring 24 in preparation for the next cycle of operations. During this idle stroke of the plunger, the table is stationary as retrograde movement thereof is prevented by the retaining pawl 33.

Accordingly, at the commencement of the idle stroke of the plunger the driving pawl 2| is disengaged from the coacting radial slot 46. and slides rearwardly over the lower surface of the disc l4 until at the end of such stroke it enters the next succeeding slot so that the table will be constrained to move forwardly in unison with the plunger when the control arm 3| is again actuated.

Finally the valve 26 in returning to its normal position again covers the spray port 2! so that the discharge of liquid through the spray pipes 28 and 28' is terminated.

I claim:

1. Apparatus for cleansing drinking glasses and the like comprising a table of openwork construction adapted to support a plurality of inverted drinking glasses, means supporting the table for rotation about a substantially vertical axis, liquid spray means arranged between loading and unloading stations of the table, a single acting reciprocable hydraulic motor, means operable during each fluid receiving stroke of the motor to store energy for the return stroke there- 'of, means operable during each alternate stroke of the motor to impart a corresponding limited angular movement to the table and control means operable manually to cause said motor to undergo one cycle of two successive strokes.

2. Apparatus for cleansing drinking glasses and the like comprising a table of openwork construction adapted to support a plurality of inverted drinking glasses, means supporting the table for rotation about a substantially vertical axis, liquid spray means arranged between loading and unloading stations of the table, a single acting reciprocable hydraulic motor, resilient means operable during each fluid receiving stroke of the motor to store energy for the return stroke thereof, transmission means interconnecting said motor and said table to impart a predetermined angular movement to the latter during each said return stroke of the motor and control means operable manually to cause said motor to undergo one cycle of two successive strokes.

3; Apparatus for cleansing drinking glasses and the like comprising a substantially horizontal table of openwork construction adapted to support a plurality of inverted drinking glasses, means supporting said table for rotation about a substantially vertical axis, liquid spray means arranged between loading and unloading stations of the table, a single acting reciprocable hydraulic motor, resilient means operable during each liquid receiving stroke of the motor to store energy for the return stroke thereof, transmission means interconnecting said motor and said table to impart a predetermined angular movement to the table during each said returnstroke of the motor, means operable to restrain the table against angular movements during each liquid receiving stroke of the motor, valve means operable to direct a cleansing liquid under pressure to said spray means during each angular movement of the table and control means operable manually to cause said motor to undergo two successive strokes.

4. Apparatus for cleansing drinking glasses and the like comprising a substantially horizontal table of openwork construction adapted to supegszmmoo port -a plurality f :inverted drinking glasses, means supporting said table for rotation about a substantiallyzvertical axis, :upwardl'y .directedliquid spray means arranged below ethe table and between loadin an :unluading lstations thereo s le-actin rec procable hydraulic :motor, means operahlezdurinezeach fluidereceivingistro of the motorlto stpre energy forithe returnastroke thereof, means operabl during: :each alterna St o e he rzmotor :to. impart. a predetermined angular movement to :the stable, "valve means operable to direct liquid under pressure :from .a common source thereof 'rtO said ihyldraulic motor and said spray -means :a-nd control means operable manually to actuate said valve rto cause qsaid motor :to undergo ,two :successive strokes and its vsesaidliquidsto be disch r ed-from said-spray means wh l e ta le is unde oing its a gular movement.

:5. Apparatus:for-cleansing-drinking glassesiand thelil ecomprising a, dished liquid collecting tray a substantially horizontal table -,arra nged ,above the tray and adapted to support a pluralityof inverted drinking glasses, means supporting said table ,for intermittent rotation about 5a substantially vertical axis, upward-1y -d.i-reQted spray means arranged below the table and between loading and unloading rstations thereof, -a single acting hydraulicrmo riarranged below the table. resilient means operable during each liquid receivingistroke of themotoiatolstoreenergy for-the return :stroke thereof, pawl and ratchet driving means interposed between ,said motor and said table wh y an neular increment of redetermined (extent is imparted-tom a ledurine aoh said return :stroke ,of the motor, ,means operable torestrain ,the table againstrotation d r n each liqu d receiving stroke :of themotor,=valvemeans operable ,to :direct liquid :nnder ;.;pressure.;from ;a

common source thereof to said motor -,and

spray means alternately, -,c on,trol means operable manually to displace said valve. means fgrom the normal to theoperated qposition thereof :to 'effieet actuation ,of said motor and means operable {to prevent the return of said valve )means to-l :said normal, ositicnthereofluntil,tneimotoricompletes two successive strokes.

.6. Apparatus forxcleansingrdrinking;glasses'and thelikecoinprising,a d-isheddiuuidcolle t ng tray, a substantially horizontal table arranged; above the tray and adapted :to: supp rt a p urality of inverted drinking glasses, means supporting table -,for intermittent :rotation {about a substantially vertical axis, upwardly directed spray means arranged *belqw tthe table and between ng and unloadin stations thereof, a sin l acting hydraulic motor arranged ,below the table, resilient means operable during each liquid receiving stroke-of the -motor'to store energy for the return stroke thereof, iareciprocable plunger rod projecting fr m said :motonnratchet :means ri idy ssoc ated w th the table; -a driving element on therplungerrod t o coactevvith saidratc'het means .and adapted to impart 1a predetermined angular -movement to the table Ld'uring earihsaid return stroke of the motor, means operable to restrain the table against rotation during each said liquid receiving stroke of the motor, valve means movable angularly between spaced normal and operated positions thereof to direct a pressure liquid alternately to said motor and said spray means, a manually operable control member for said valve means, means operable to retain said valve means temporarily in the operated position th reof and means p rable wh n sa d motor 10 completes two suceessive strokes to release said valve retaining :means and permit said valve meansto,:1return:to the'normal position thereof.

7. Apparatusfior cleansing drinking glasses and the like according to claim 6 including means forming a :valve chamber accommodating said valvemeansa seating in said valvechamber-and engagedrby :said valve means said :seating having acylinder port communicating-with the hydraulic motorsandqa'spray port spaced from :the cylinder pontandcommunicating with said spray means said-cylinder port beinguncovered andsaid spray port covered 'by said walvemeans when :the latter is disposed :in its qsaid ,normal :position.

8. Apparatus Zfor cleansing drinking glasses and the like comprising :a =fixed:circular tray having an upstanding rim portion and provided with a discharge outlet, a horizontal circular :table of op nwork constru ion arranged coaxially above the trayand adapted tosupport a plurality offinverted drinki-ng lasses, means upstanding gfrom the ,cen-ter-zof the tray and supporting the-table for ,rotation about ,-a vertical axis, at least one spray discharge :pipe :arranged below the table and between ,-loading "and unloading stations thereof to=direct acleansing liquid upwardly onto vessels supported on the table, a single acting hydraulicmotorpylinder arran d below thewtable and 'fixed relatively to the tray, a slidable "plun er in -the cylinder, 2a plunger rod secured to the plunger-and projecting from the cylinder, :ratchet means son the table, a "driving element on said plunger rod randcoacti-ng zwith said'ratchet means, a valve-chamber arranged tobeconnected :to-a source (of liquid under pressure, said valve chamber being fixed .relatively to the 'trayand disposed below the table, a valve seating in said valve chamber and having therein -a spaced pair -;of ports 20 of which communicates with one end ofsaid cylinder while the other ;.communicates with said .spraypipe, a valve member arranged within said valveechamber ,-in engagement :with said seating and movable angularl-y between a normal position and an operated p sition thereof to cover and uncover said ports alternately, a compression spring disposed coaxiall-y with :the plunger'and-arranged to be compressed during each liquid receiving stroke of the motor to store energy for the return stroke thereof, control means operable manually itO displace said valve member from its normal :position to its operated position, means-biassing said valve means towards said normal position thereoi, .means operable to prevent the return of said valve means to said r al position thereof and imeans operable to eleasezsaid retaining means when the plunger completes two successive strokes :in response to the operation .of :said :control means.

.9. Apparatus for cleansing drinking vessels and the like according to claim 8 wherein said valve seating is provided with a further port communicating with an exhaust passage and wherein said :valve means is provided with a bypass passage which connects said exhaust port to the port leading to the cylinder 'when said last mentioned port is covered by saidyvalve means.

10. Apparatus for cleansing drinking vessels comprising a horizontal table of openwork construction supported for rotation about a vertical axis and adapted to support a plurality of inverted drinking vessels, a single acting hydraulic motor arranged below the table, said motor comprising a cylinder, a slidable plunger therein and a plunger rod projecting from one end thereof,

11 pawl and ratchet means interconnecting said plunger rod and said table whereby the latter is moved angularly when the plunger rod is displaced in one direction, a'first retaining means operable to restrain the table against rotation while the plunger is moving in the opposite direction, at -least one upwardly directed spray pipe arranged below the table and between loading and unloading stations thereof, a valve chamber adapted to be connected to a source of liquid 'under pressure, a seating in said valve chamber and'having therein a spaced pair of portsconnectedrespectively to said spray pipe and to one end of the cylinder, a compression spring arranged within the other end of the cylinder to effect the return stroke of the plunger therein, a valve member arranged within said valve chamber in contact with said seating therein and adapted to cover and uncover said ports alternately, said valve member being movt'aining shoulder on the cam for engagement by 1 said arm when the valve member is disposed in able angularly between a normal position and an operated position thereof, control means operable manually to move said valve member from said normal position to said operated position, means' biassing said control means and said valve means towards their normal positions, a cam movable in unison with said valve means and arranged to release said first restraining means when said control means is moved to its operated position, a second retaining means coacting with said cam to prevent the return of said valve means to the normal position thereof and means operable to release said cam retaining means when the motor completes two successive strokes in response to operation of said control means, said pawl and ratchet means being operable to move the table angularly during each return stroke of the plunger of the motor under the influence of said compression spring. 11. Apparatus for cleansing drinking glasses and the like according to claim 10 wherein said cylinder port is uncovered and said spray port is covered when said valve member is disposed in its normal position. 7

12. Apparatus for cleansing drinking vessels according to claim 10 wherein said valve seating is provided between said spray port and said cylinder port therein with an exhaust port communicating with a restricted exhaust passage and wherein said valve member is formed in its inner face with a by-pass passage which connects said cylinder and exhaust ports when the valve member is disposed in its operated position.

13. Apparatus for cleansing drinking vessels according to claim 10 including means for heating liquid under pressure, a second spray pipe arranged below the table and connected at one end to the outlet of said heating means and wherein the outer end of said first mentioned spray pipe is connected to the inlet of said heatmg means.

14. Apparatus for cleansing drinking vessels according to claim 10 wherein said cam retaining means comprises a pivoted arm, means urging said arm into contact with the cam, a reits said operated position and coacting means on said plunger rod and pivoted arm to displace the latter and release the cam as the plunger rod completes its return stroke.

15. Apparatus for cleansing drinking glasses and the like comprising a fixed circular tray having an upstanding rim portion and provided with a discharge outlet, a horizontal circular table of openwork construction arranged coaxially above thetray and adapted to support a plurality of inverted drinking glasses, means supporting the table for rotation about a vertical axis, at least one spray discharge pipe arranged below the table andbetween loading and unloading stations thereof to direct a cleansing liquid upwardly therethrough, a single acting hydraulic motor arranged below the table and comprising a cylinder, a slidable plunger therein and a plunger rod projecting from the cylinder, ratchet means secured to the table, a driving element on said plunger rod for coacting engagement with said ratchet means, a valve chamber arranged to be connected to a source of liquid under pressure, a valve seating therein, a valve member engaging said seating and movable angularly between a normal position and an operated position thereof, said seating being provided with a spaced pair of ports one of which communicates with one end of said cylinder while the other communicates with said spray pipe, resilient means arranged to be strained during each liquid receiving stroke of the motor, control means connected to said valve member and operable manually to displace the latter from its normal position to its operated position, means biassing said valve means towards said normal position thereof, retaining means operable to arrest said valve means at an intermediate position as same is returning to its normal position and means operable to release said retaining means when the plunger completes two successive strokes in response to the operation of said control means, said valve means being adapted to cover both ports when disposed in its normal position, to cover said spray port and expose said cylinder port when same is disposed in said operated position and to cover said cylinder port and expose said spray port when disposed in said intermediate position.

GERALD ARTHUR STANLEY.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 822,568 Anderson June 5, 1906 1,780,772 Washburne Nov. 4, 1930 2,082,285 Greer June 1, 1937 2,122,018 Wolf June 28, 1938 2,151,437 Ohme Mar. 21, 1939 

